An elderly Palestinian-American who was found dead after being detained by Israeli troops in the occupied West Bank suffered sudden cardiac arrest caused by the stress of being manhandled, according to a Palestinian autopsy released Wednesday. A brother of Omar Abdalmajeed As’ad said the report – which also noted that the 78-year-old had a history of heart problems – showed Israel bore responsibility for his death two weeks ago. Details of As’ad’s pre-dawn detention on Jan. 12 in his hometown of Jiljilya, and the post-mortem examination, “lead us to deduce that the death happened as a result o…